Installation and procedure for treating a paper band, in particular a smoking paper band

摘要

Installation for treating a band of smoking paper (2) with a weight not exceeding 70 g / m2 comprising: an input side, whereby the paper band (2) is supplied to the installation, an output side whereby the paper band (2) leaves the installation, passing the paper band (2) through the installation from the entrance side to the exit side in a transport direction, a printing unit next to the input side , preferably a gravure printing unit (5), to apply a liquid printing medium on the paper web (2), in which the printing unit is designed to print a print pattern with alternative areas containing a medium of printing and do not contain printing medium on the paper web (2), a first drying station, in particular an air dryer, after the application device in the transport direction to dry the printing medium applied to the band d e paper (2), a device for humidifying the paper web (2) after the first drying station in the transport direction, and a second drying station after the humidification device in the transport direction, by means from which the humidified paper web (2) is dried, in which the second drying station is carried out by contact drying, in which the humidified paper web (2) is in direct contact with at least one roller of heated drying (23, 25, 27), preferably three or four drying rollers (23, 25, 27), characterized in that the first drying roller (23) is not in contact with the printed side of the paper web ( 2).